Subtract 49/56 from 28/42
28/42 - 49/56 is -5/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
28/42 = 28 × 4/42 × 4 = 112/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
49/56 = 49 × 3/56 × 3 = 147/168 - Subtract the two like fractions:
112/168 - 147/168 = 112 - 147/168 = -35/168 - After reducing the fraction, the answer is -5/24
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